{
  "type": "minecraft:crafting_shaped",
  "key": {
    "B": {
      "item": "titanforgedpickaxe:efficiency_upgrade_level_3"
    },
    "E": {
      "item": "minecraft:emerald"
    },
    "T": {
      "item": "titanforgedpickaxe:efficiency_upgrade_level_2"
    }
  },
  "pattern": [
    "TET",
    "EBE",
    "TET"
  ],
  "result": {
    "item": "titanforgedpickaxe:efficiency_upgrade_level_4"
  }
}